Original faded; best scan possible.
Identification of the yellow coronal line: A5694.4
1954-02-24
Charlotte Pecker Donald E. Billings Walter Orr Roberts
archival document
Sun--Research
Gordon A. Newkirk, Jr. Papers
https://aspace.archives.ucar.edu/repositories/2/resources/35
Copyright University Corporation for Atmospheric Research (UCAR). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
http://n2t.net/ark:/85065/d7zc814v